The ADT servicemans wife gives him a pamphlet about overcoming deviance. Bill begins to look into the BTK killer and with Holdens help, notices that he bases his actions on various other killers,Mindhunter Season 3 DVD including David Berkowitz. They interview him and get him to admits to lying about hearing voices and demons,MindhunterSeason 3 furthering their data on classifications of killers. Bill and Wendy discuss Holdens panic attacks and agree to share information and look out for him. A body is discovered in a house that Nancy, Bills wife, is the realtor of.